Rosie, now you bring it to my attention I agree the 1892 return record could not be.. As it is my family in the 1891 Scottish census. I have not found where the father Donald (birth name Daniel Lewis Murray ) actually went to the USA and like you have not found their return pre 1891.
Yes Catherine did die 1911
After the birth of John was my grandfather
Donald in Scotland 1894,
followed by Agnes Morrison Murray 1896,
Ms Stewart Murray 1899,
Robert Murray 1901
Catherine McIver Murray 1903
Roderick McIver Murray 1905 - 1907
Roderick McIver Murray 1908
I will check SP again as I still have to find 3 more births according to the 1911 census there was 12 born 9 living... There is a gap between John 1888 & Donald 1894 where there could be a possibility.
Karen